Yarn winder



J. A. FIRSCHIQNG mm wm'man Filed June 244921 3 Sheet-Sheet 1 INVENTOR JBsEPH AfiRscHmq ATTORNEY Aug. 4, 1925. 1,548,030

1 J. A. FIRSCHING mw mum-m Filed June 24. 1921 SShegts-Sheet 2 INVENTOR. UbSgPl-I A-Fmscumqi 4 ATTORNEY Aug.4, 1925. 1,548,030

1 J. A. FIRSCHING YARN WINDER Filed June 24, 192: s shets sheet s INVENTORI. JEJSEPH Fmscnmq EYWMAHM ATTORNEY Patented Aug. 4, 1925 UNITED STATES Lessee JOSEPH A. FIR-SCHING, UTICA, NEW YORK.

YARN wnvmm.

Application filed June 24, 1921. Serial No. 480,123.

To (all whom it may concern.-

Be 1t known that I, Josnrn A. FIRSCHING,

a citizen of the United States, residing at I applied to existing winding machines by Utica, New York, have invented certam new and useful Improvements in Yarn Vinders, of which the following isa specification.

This invention relates to yarn winders and its object is to devise a winder whose yarn feeding'mechanism will positively and automatically stop when the yarn breaks so that a second stroke of the driving ratchet will never take place after breakage of the yarn. an automatic stop device actuatable by the yarns, even the finest silk yarn.

The invention consists essentially of a yarn carrier adapted to be moved uniformly upwardly to wind the yarn accurately upon -a rotating bobbin and step by step means are provided for controlling the upward movement of the carrierv to be suitable to the size of yarn being wound. The carrier includes a pivoted arm. whose movement in one direction permits the step by step means to function effectively, whereas movement 0 the arm in the other direction renders the step by step means inoperative to elevate or move the carrier. The yarn on its way to the bobbin passes along the carrier arm so that thepull or tension of the yarn moves it in the direction permitting operativeness of the step by step means for elevating the car rier to wind the yarn upon the bobbin, but the instant the yarn breaks, the carrier arm' moves to the opposite direction which renders inoperative the means for elevating the carrier arm and in effect the yarn feeding mechanism is stopped by such breakage. The details forming means whereby the results are accomplished all form a part of the invention.

I have herein disclosed one embodiment of my invention which is the best of which I am present informed but it is to be taken solely as being illustrative and in no sense limiting for many embodiments can be de-' vised, all coming within the scope of my invention.

The invention has been illustrated in the pivoted inthe top arm 25 and plate 27..

The offset or crank portion of, the rod is I accompanying drawings inwhich:

Figure 1 shows an end view of one form of the invention; 1

Fig. 2shows a back view thereof;

Fig. 3 shows a top or plan view thereof;,

Further, it is desired to. have such Fig. 4C shows a more detailed plan view of the step by step mechanism;

The improved feeding mechanism may be eliminating certain parts thereof or it may be built as an entirely new machine but as its operation is the same, it will be said that whether from an old or new machine, a cam 11 is the driving force and it reciprocates vertically a shaft 12.

Reciprocation of the shaft 12 is converted into horizontal reciprocation of shaft 13 which in turn operates a builder screw through a step by step mechanism, rotation of the builder screw elevating uniformly the yarn carrier whereby it feeds yarn evenly to a rotating bobbin upon which the yarn is to be wound.

The 'mechanism may be followed by understanding that the shaft 13 carries a clamp 14: upon which is supported a dog 15 pivoted at 16. A rail 17 has a journal arm 18 for the shaft 13 and rotatably journalled in the rail is a vertical shaft 19 having large flat f threads 20 cut thereon and hereinafter this shaft will be referred to as the builder screw. The upper end of the builder screw isjournalled in an arm 25 supported on a standard or guide 26 which is in turn supported from a plate or bracket 27 secured to the rail 17.

This screw shaft extends below the rail 17 where it has secured to its end, a ratchet gear 21. .with a pawl carrier 61 pivotally mounted on said shaft above the ratchet. A pawl 62 depends from the pawl carrier and engages with the ratchet 21. Oscillation of the pawl carrier 61, through the medium of the pawl 62 rotates the ratchet in a step by step manner and the pawl carrier is oscillated by engagement of a turned-up end 63 ofthe dog 15 with the pawl carrier in its stepped recessed end 6 1. The stepped recess renders the pawl carrier more certain of engagement therewith by the dog. The dog 15 is operated by a trip 22 having a forward curved arm 23; and a rearward curved arm 24. This trip is .adjustably supported adjacent the end of an offset rod '28 numbered 29.

The yarn carrier which controls the winding of the yarn on the bobbin and which is adapted to be elevated by rotation of the builder screw comprises a body part adapted to encircle the builder screw and having secured thereto an arm 31 equipped with usual strippers 32. An offset extension 33 of the arm 31 carries an enamelled eye 34. Pivoted to the extension arm at 35 is a lever whose longer or work arm 36 is offset and carries at its extremity an enamelled eye 37 adjacent a bobbin 38. The short or power arm 39 of the lever termi nates in a yoke formation 40 adapted to straddle the crank 29 of the rod 28 (whereby pivotal movement of the lever oscillates.

the rod 28). Pivoted from the plate 31 at 91-1 is bent arm 42 bent at such an angle as to correspond to the inclination of the threads 20 on the builder screw with which the arm makes operative con nection. The arm is releasably held in such thread engaging or operative position by means of a latch 43. A cushioned stop or pin is carried by the plate 31 of the yarn carrier for contacting with the fixed plate 27 and this pin has fastened to it a spring as pulling upon the short arm 39 of the lever or against yarn tension thereon. The pin also holds another spring 16 for maintaining the bent arm 42 in opera tive position. To hold the ratchet 21 against backward movement a spring stop 47 is provided on a downward extension 48 of the plate 27.

The extent of horizontal movement of the shaft 13 and the consequent amount of rotation per stroke thereof of the ratchet 21 is controlled or regulated by providing the end of the shaft 13 with a roller 50 operating in a grooved guide 51 which ispivoted at 52 in a bracket or standard 53 and ad justing screws 54 and 55 adjust the angle of inclination of the guide 51. A pointer 56 and scale 57 is provided to indicate the number of teeth the ratchet 21 will be moved for each reciprocation of the shaft 13 and dog 15. As the shaft 12 is vertically reciprocated by the cam 11, the inclined guide 51 converts that motion into horizontal reciprocation of the shaft 13 and the degree of inclination of the guide controls the extent of reciprocation of the shaft 13.

The bobbin 38 is supported as usual upon a base 58 on a bracket 59 and shaft 60 is adapted to rotate the bobbin. The surface of the bobbin is grooved spirally or otherwise as at 63 to prevent creeping of the yarn.

The yarn to be wound upon the bobbin is on a reel from where it passes through a tension device 65 comprising an enamelled wire having two loops or eyes 66 therein with the yarn passing around the wire and through the eyes. From the tensioning device it passes through eye 34, through strippers 32 and through eye 37 to the bottom. In passing through eye 37 on lever arm 36 it exerts pressure or tension on the lever in a direction toward the bobbin, or opposite to the action of the spring 45 upon the lever arm 33.

In operation, the rotation of the bobbin 38 and the winding of the yarn thereon causes tension, as above described, upon the eye 37 and lever arm 36 in a direction toward the bobbin and enough to overcome the spring t5 whereby the lever is moved clockwise about its pivot 55 (Fig. 4). Such movement or tendency of the lever (by the engagement of its yoked end 40 with the crank 29) moves the rod 28 on its pivot anti clockwise in direction and this movement or tendency carries with it about its pivot the trip 22 so that its short or forward ann 23 thereof will engage the dog 15 to maintain it in contact with the pawl carrier 61.

Meanwhile dog 15 is being reciprocated longitudinally along with shaft 13 and this longitudinal movement of the dog rotates the ratchet through the medium of the pawl carrier and pawl. Then rotation of the ratchet rotates the builder screw 20 which in turn elevates the yarn carrier (by engagement of the bent arm 12 with the threads thereof) and as the yarn carrier (comprising the plate 31, eye 34;, lever and eye 37) is elevated, the yarn is wound evenly upon the bobbin. So long as the yarn from the reel to the bobbin is unbroken, tension is maintained on the lever and the winding is uninterrupted.

But the object of the invention is to have the yarn feeding mechanism cease immediately upon breakage of the yarn so to that end, if the yarn does break anywhere between the reel and bobbin, the yarn tension on the lever arm 36 ceases permitting the spring 4E5 to come into action to put tension on the lever arm 33 in a direction opposite to the yarn tension. This spring tension moves the lever anti-clockwise about its pivot 35, whereupon cranl 29 and rod 28 are moved clockwise about their common pivot 28 carrying with them the trip 22 to move its forward arm 23 out of contact with the dog 15 and its rearward arm 2% into contact with the dog 15 whereby the dog is swung on its pivot 16 away from the ratchet 21. In this position, continued longitudinal reciprocation of the dog is ineffective upon the ratchet so that the ratchet is not further rotated and the builder screw therefore remains quiescent as does the yarn carrier or other yarn feeding means. In such position, all parts are stationary except the constant rotation of the bobbin and the re ciprocation of the shafts 12 and 13. Stoppage of the yarn carrier soon attracts the operators attention and the yarn can be reconnected or re-threaded, but no tangling results as is usual where the yarn feeding stoppage is not automatic. As weaker yarn is to be used by the winder, the lever arm 39 or the crank 29 can be varied as to its length to make the device more sensitive or able to operate with finer yarn.

When the yarn carrier is elevated by rotation of builder screw to the top of the latter, the operator pivotally moves the bent arm 42 out of contact with the threads 20 of the screw, whereupon the yarn carrier falls by gravity back to initial position (Fig. 1) and its downward movement or fall is stopped and cushioned by means of the spring pressed cushioning stop pin a l coming in contact with the plate 27.

It will thus be seen that I have devised an automatic stop for the yarn feeding mechanism of a winder that is positive and. accurately automatic in that a second feeding stroke will never take place after breakage, the uncompleted stroke of'the feed driving gear will be finished but that only. The control or stop is operable by the very finest silk yarns and the device has no gears or other friction creating elements for the drive is secured through the medium of one ratchet and a rotatable builder screw. The efiicient results are obtained by the use of the above mentioned elements and the arrangement of having the yarn tension come on a dog through a leverincluding train of easily movable and light elements. Further, an extremely simple system of control of the speed of the feed is included in the invention as is also a highly efficient bobbin construction.

What I claim is:

1. In a yarn Winder, a yarn supply, a bobbin, a traversing mechanism for feeding yarn to the bobbin, means for actuating said traversing mechanism including a ratchet and a dog, a trip for rendering the dog inoperative, and means operated by the tension of the yarn being fed for rendering the dog operative to drive the traversing mechanism.

the traversing mechanism from the constantly operating element. 7

3. In a yarn winder, a yarn supply, a bobbin, a traversing mechanism for feeding yarn to the bobbin, said mechanism including a lever on which the yarn is adapted to pull in one direction,'and spring means pulling on the lever in the opposite direction to actuate the lever when the yarn breaks.

4. In a yarn winder, a yarn supply, a bobbin, a traversing mechanism for feeding yarn to the bobbin, a constantly operating element, driving means between the element and the traversingmechanism normally inoperative, and means including a double arm pivoted trip operated by tension of the yarn being fed for rendering the driving means effective to operate the traversing mechanism from the constantly operating element.

5. In a yarn winder, a traversing mechanism for feeding the yarn, a step by step mechanism for operating the traversing mechanism, a constantly movable element including a horizontally reciprocating shaft and a yarn tension operated lever for controlling the operation-of the step by step mechanism by the movable element.

6. In a yarn winder, a traversing mechanism for feeding the yarn, a step by step mechanism for operating the traversing mechanism, a constantly movable element including a. horizontally reciprocating shaft, a yarn tension operated lever for control ling the operation of the step by step mech anism by the movable element, and means for controlling the extent of reciprocation of the shaft.

7. In a yarn winder, a bobbin, a traversing mechanism for feeding yarn to the bobbin, and means for causing a traversing movement of said mechanism with respect to the bobbin comprising a rotatable builder screw.

8. In a yarn winder, a reciprocating shaft, a reciprocating dog operated thereby, a ratchet operated by the dog, a builder screw rotated by the ratchet and a yarn carrier elevated by rotation of the builder screw.

9. In a yarn winder, a reciprocating shaft, a reciprocating dog operated thereby, a ratchet operated by the dog, a builder screw rotated by the ratchet, a yarn carrier elevated by rotation of the builder screw, and means operating in connection with a portion of the yarn carrier for maintaining the dog operative upon the ratchet.

10. In a yarn winder, a reciprocating shaft, a reciprocatingdog operated thereby, a ratchet operated by the dog, a builder screw rotated by the ratchet, a yarn carrier elevated by rotation of the builder screw, spring means for rendering the dog normally inoperative upon the ratchet, and means whereby the yarn tension operating through a portion of the yarn carrier maintains the dog operative upon the ratchet during feeding of the yarn.

11. In a yarn winder, a reciprocating shaft, a reciprocating dog, a trip between the shaft and dog, a pawl carrier, a pawl, aratchet operated by the dog through the medium of the pawl carrier and pawl, ayarn carrier, a rotatable builder screw elevating the carrier, the ratchet being 011 the builder screw, the reciprocating shaft moving the dog to rotate the ratchet and the builder screw at a proper speed for the size of the yarn being wound.

12. A yarn winder comprising a builder screw and means for rotating the builder screw.

13. A yarn winder comprising a builder screw, means for rotating the builder screw, and a yarn guide carried, by the builder screw.

14:. A yarn winder comprising a builder screw, a ratchet mounted on the builder screw for rotating the latter, and a pawl for intermittently rotating the ratchet.

15. A yarn winder comprising a builder screw, a ratchet mounted on the builder screw for rotating the latter, a pawl for intermittently rotating the ratchet, and means for rendering the pawl inoperative upon breaking of the yarn.

16. In a yarn winder, a yarn carrier, a step by step mechanism including a rotary builder screw for causing a traversing movement of the yarn carrier.

17. In a yarn winder, a yarn carrier, a step by step mechanism including a rotary builder screw for causing a traversing movement of the yarn carrier, and means operated upon breaking of the yarn for rendering the step by step mechanism inoperative.

18. In a yarn winding machine of the vertical spindle type, in combination, a reciprocating builder bar, a rotatable builder screw thereon, ratchet mechanism on said bar for rotating said screw, a fixed member adapted to actuate said ratchet mechanism during reciprocation of the builder bar, a thread guiding bracket adapted to be elevated when the screw is rotated, and means controlled by the yarn being wound for rendering the ratchet mechanism inoperative upon failure of the yarn supply.

19. In a yarn winding machine of the vertical spindle type, in combination, a reciprocating builder bar, a rotatable builder screw thereon, ratchet mechanism on said builder bar for rotating the screw, a fixed cam adapted to actuate said ratchet mechanism during reciprocation of the builder bar, a nut device adapted to be moved up on said screw when the latter is rotated, a yarn guide carried by the nut device, a pawl to prevent backward rotation of the screw, and means controlled by the yarn being wound for rendering the ratchet mechanism inoperative upon failure of the thread supply.

In testimony whereof I have affixed my signature to this specification.

JOSEPH A. FIRSCHING. 

